LU-10756 osp: properly order sysfs registration

LU-10756 osp: properly order sysfs registration

When generating udev events for import states I found that the
order of setting up the sysfs tree for osp was important. Setup
the osp obd device sysfs tree before lwp sysfs device. Always
call client_obd_cleanup() first on shutdown.

Change-Id: I29257f3e91f10f8266509b535e36cc8b62ce2362
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: https://review.whamcloud.com/35464
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Mike Pershin <mpershin@whamcloud.com>
Reviewed-by: Shaun Tancheff <stancheff@cray.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>